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Finding the Fourth Proportional to 13,093.85, 18,068.94 and 7,125.17

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Solution

The fourth proportional to 13,093.85, 18,068.94 and 7,125.17 is: 9,832.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,093.85 : 18,068.94 = 7,125.17 : x
  2. Step 2: Convert to fraction form
    13,093.85/18,068.94 = 7,125.17/x
  3. Step 3: Cross multiply
    13,093.85x = 18,068.94 × 7,125.17
  4. Step 4: Simplify right side
    13,093.85x = 128,744,178.88
  5. Step 5: Solve for x
    x = 128,744,178.88/13,093.85
  6. Step 6: Final answer
    x = 9,832.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.